doi:info:doi/10.1063/1.4991993

アイテムタイプ

学術雑誌論文 = Journal Article

言語

英語

著者

Shen Qing
Ripolles Teresa S.
Even Jacky
Ogomi Yuhei
Nishinaka Koji
Izuishi Takuya
Nakazawa Naoki
Zhang Yaohong
Ding Chao
Liu Feng
Toyoda Taro
Yoshino Kenji
Minemoto Takashi
Katayama Kenji
Hayase Shuzi

著者所属

Department of Engineering Science, Faculty of Informatics and Engineering, The University of Electro-Communications
Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology
Fonctions Optiques pour les Technologies de l'information
Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology
Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology
Department of Engineering Science, Faculty of Informatics and Engineering, The University of Electro-Communications
Department of Engineering Science, Faculty of Informatics and Engineering, The University of Electro-Communications
Department of Engineering Science, Faculty of Informatics and Engineering, The University of Electro-Communications
Department of Engineering Science, Faculty of Informatics and Engineering, The University of Electro-Communications
Department of Engineering Science, Faculty of Informatics and Engineering, The University of Electro-Communications
Department of Engineering Science, Faculty of Informatics and Engineering, The University of Electro-Communications
Department of Electrical and Electronic Engineering, Miyazaki University
Department of Electrical and Electronic Engineering, Faculty of Science and Engineering, Ritsumeikan University
Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University
Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology

抄録

Lead halide perovskites are attracting a great deal of interest for optoelectronic applications such as solar cells, LEDs, and lasers because of their unique properties. In solar cells, heat dissipation by hot carriers results in a major energy loss channel responsible for the Shockley–Queisser efficiency limit. Hot carrier solar cells offer the possibility to overcome this limit and achieve energy conversion efficiency as high as 66% by extracting hot carriers. Therefore, fundamental studies on hot carrier relaxation dynamics in lead halide perovskites are important. Here, we elucidated the hot carrier cooling dynamics in all-inorganic cesium lead iodide (CsPbI3) perovskite using transient absorption spectroscopy. We observe that the hot carrier cooling rate in CsPbI3 decreases as the fluence of the pump light increases and the cooling is as slow as a few 10 ps when the photoexcited carrier density is 7 × 1018 cm−3, which is attributed to phonon bottleneck for high photoexcited carrier densities. Our findings suggest that CsPbI3 has a potential for hot carrier solar cell applications.

雑誌名

Applied Physics Letters

巻

111

号

15

ページ

153903-1 - 153903-5

発行年

2017-10-09

出版者

American Institute of Physics

ISSN

0003-6951
1077-3118

書誌レコードID

AA00543431

DOI

info:doi/10.1063/1.4991993

権利

The following article has been submitted accepted by Applied Physics Letters. After it is published, it will be found at https://doi.org/10.1063/1.4991993.

情報源

https://doi.org/10.1063/1.4991993

版

publisher

査読の有無

yes

資料タイプ

Journal Article

研究者情報

https://hyokadb02.jimu.kyutech.ac.jp/html/322_ja.html

連携ID

6669

論文ID（NAID）

http://ci.nii.ac.jp/naid/120006529956

Kyutacar　九州工業大学学術機関リポジトリ

Kyushu Institute of Technology Academic Repository

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Slow hot carrier cooling in cesium lead iodide perovskites 利用統計を見る

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